Mining from RS3 gold 80-99 will make about 60M on gold ore in the Living Rock Caverns and take ~220 hours (assuming 50k exp/h). Hunter from 80-99 would create about 35M on red chinchompas and take ~150 hours (supposing 75k exp/h). Runecrafting/Slayer would definitely make more money, but you are looking at more time in getting to 99. The best way is to get 85 Dungeoneering and only do...